1) Watch the caterpillar in this short video clip very carefully. What’s going on? Do you notice anything surprising?
2) Describe what you see in detail. The process of writing a good verbal description helps you look closely. Use the vocabulary word “petiole” in your description. (The petiole is the stalk of a leaf. It connects the leaf to the stem of the plant.)
3) Now watch the clip again. This caterpillar behavior, called “leaf notching,” is an example of a behavioral adaptation.
Remember, when thinking about adaptations, there's always a WHY behind WHAT you see. So whenever you see an unusual behavior or body part, ask yourself WHY...
WHY, for example, would a caterpillar cut the petiole of the very leaf it's standing on? The leaf looks like a lose tooth, ready to break from the plant!
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